Cropped subtitles. Black bars on both sides of the screen
Symptom
Subtitles are cropped if aspect ratio is set to “zoom” or “cinema zoom”.
How to fix
[Menu] → [Picture] → [Aspect ratio] → [16:9]
[Smart] → [Setting] → [Picture] → [Aspect ratio] → [16:9]
[Home] → [Setting] → [Advanced setting] → [Picture] → [Aspect ratio]→ [16:9]